What is the schedule performance index (SPI) if the planned value (PV) is $100, the actual cost (AC)

What is the schedule performance index (SPI) if the planned value (PV) is $100, the actual cost (AC) is $150, and th

e earned value (EV) is $50?

A. 0.50

B. 0.67

C. 1.50

D. 2.00